Ключевые слова: airways, alveoli, anatomy, biological, biology, biology class, black, body part, breath, breathing, bronchi, bronchial tubes, cardiovascular system, chest, chest x ray, dark background, detailed, diaphragm, disease, educational anatomy, exhalation, health, healthcare, human body, illness, inhalation, internal, lung function, lungs, man, medical, medical illustration, organ, oxygen, pulmonary, pulmonary circulation, pulmonary function, respiration, respiratory anatomy, respiratory system, respiratory tract, scientific, thoracic cavity, thorax, tissue, trachea, unhealthy,